The answer is "because they felt these were the rituals which made cargo available to the Europeans".
Cargo cults frequently develop during a mix of emergencies. Under states of social pressure, such a development may shape under the administration of a magnetic figure. Cargo cults are a misconception of the frameworks engaged with asset conveyance, and an endeavor to get such products in the wake of interfered with exchange. Cargo cults happened occasionally in numerous parts of the island of New Guinea.